- Impaired expression of erythrocyte glycosyl-phosphatidylinositol-anchored membrane CD59 in patients with psoriatic arthritis. Relation to terminal complement pathway activation. Triolo, G., Accardo-Palumbo, A., Sallì, L., Ciccia, F., Ferrante, A., Tedesco, L., Sallì, S., Giardina, E., Pappalardo, A., Licata, G. Clinical and experimental rheumatology. (2003)